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Waste Cooking Oil as Eco-Friendly Rejuvenator for Reclaimed Asphalt Pavement

Bardella, Noemi ; Facchin, Manuela ; Fabris, Eleonora ; Baldan, Matteo ; Beghetto, Valentina

Materials, 2024-04, Vol.17 (7), p.1477 [Periódico revisado por pares]

Switzerland: MDPI AG

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Waste Cooking Oil as Eco-Friendly Rejuvenator for Reclaimed Asphalt Pavement
Autor: Bardella, Noemi ; Facchin, Manuela ; Fabris, Eleonora ; Baldan, Matteo ; Beghetto, Valentina
Assuntos: Alcohol ; Amides ; Asphalt pavements ; Asphaltenes ; Atmospheric pressure ; Biodiesel fuels ; Biofuels ; Bitumens ; Bituminous materials ; Boiling points ; circular economy ; Cooking ; Dispersants ; Esters ; Heptanes ; Household wastes ; Melting points ; NMR ; Nuclear magnetic resonance ; Oils and fats, Edible ; Parameter modification ; Phenylethyl alcohol ; reclaimed asphalt pavement ; Strategic planning (Business) ; Temperature ; Transesterification ; waste cooking oil ; waste valorisation
É parte de: Materials, 2024-04, Vol.17 (7), p.1477
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Over 50 MioT of Waste Cooking Oil (WCO) was collected worldwide in 2020 from domestic and industrial activities, constituting a potential hazard for both water and land environments, and requiring appropriate disposal management strategies. In line with the principles of circular economy and eco-design, in this paper an innovative methodology for the valorisation of WCO as a rejuvenating agent for bitumen 50/70 coming from Reclaimed Asphalt Pavement (RAP) is reported. In particular, WCO or hydrolysed WCO (HWCO) was modified by transesterification or amidation reactions to achieve various WCO esters and amides. All samples were characterised by nuclear magnetic resonance, melting, and boiling point. Since rejuvenating agents for RAP Cold Mix Asphalt require a melting point ≤0 °C, only WCO esters could further be tested. Efficiency of WCO esters was assessed by means of the Asphaltenes Dispersant Test and the Heithaus Parameter. In particular, bitumen blends containing 25 wt% of WCO modified with 2-phenylethyl alcohol, showed high dispersing capacity in -heptane even after a week, compared to bitumen alone (1 h). Additionally, the Heithaus Parameter of this bitumen blend was almost three times higher than bitumen alone, further demonstrating beneficial effects deriving from the use of WCO esters as rejuvenating agents.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Waste Cooking Oil as Eco-Friendly Rejuvenator for Reclaimed Asphalt Pavement

Bardella, Noemi ; Facchin, Manuela ; Fabris, Eleonora ; Baldan, Matteo ; Beghetto, Valentina

Switzerland: MDPI AG

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